Summary
Updated Aug 31, 2026
Jonathan I. Lieber is Chief Financial Officer of Rallybio Corp (RLYB). 1 SEC Form 4 filing on record, dated 23 February 2026. Most recent open-market trade: sold $4K of RLYB on 23 February 2026. Lifetime open-market sales: $4K.
Recent Transactions
2Every recent SEC Form 4 transaction Jonathan I. Lieber has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Jonathan I. Lieber files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- ADAR1 Capital Management, LLC - $4.23M of RLYB open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Jonathan I. Lieber?
Jonathan I. Lieber is a corporate insider, tracked as Chief Financial Officer of Rallybio Corp (RLYB). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Jonathan I. Lieber last file a Form 4?
The only primary Form 4 on record is dated 23 February 2026.
Has Jonathan I. Lieber been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($4K) across all tracked filings.
Where can I see all of Jonathan I. Lieber's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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